And there exists some functional relationship between the quantity of the hydrogen and the drop of the readout intensity of the rlg . usually a rlg is defined failed when the readout intensity drops to the 1 / e percent of the initial value , so a new idea that using the quantity of the hydrogen contained in the work gas to predict the life time of the rlg is put forward in this paper 论文通过对比发现,工作气体中所含有的杂质气体氢气会加剧这两种因素对寿命的影响,并且氢含量的多少与激光陀螺仪输出功率下降之间存在着某种函数关系,而当激光陀螺输出功率下降到初始强度的1 / e时就可以判定陀螺失效。
Resolving - transformers is a kind of component that converts the rotor corners to electrical signals , one has sine functional relationship with the rotor - comers , while the other has cosine ones , and this component has been widely used in many fields such as automatic controls , aviation and firepower fields to implement the information transmission of shaft - angle between systems 正余弦旋转变压器是一种将转子转角变换成与之成正余弦函数关系的电信号的元件,被广泛应用于自动控制、航空、火力控制等领域,以实现系统之间轴角信息的传输功能。
Based on above performances the applications of multi - sensor data fusion in state estimation for maneuvering target is studied systemically . the main work includes : based on the analysis that the extreme value of acceleration presupposed causes influence in the “ current ” statistical model , a modified model is given , which utilizes the functional relationship between maneuvering status and estimation of the neighboring intersample position vector to carry out the self - adaptive of the process noise variance . then combining with the recursive characteristic of kalman filter , an improved self - adaptive filtering algorithm is presented 基于此,本文针对多传感器数据融合技术在机动目标状态估计中的应用进行了系统的研究,其主要工作如下: 1 、基于“当前”统计模型中加速度极限值的预先设定对于滤波效果影响的分析,利用目标机动状况与相邻采样时刻间位置估计量变化之间的函数关系实现噪声方差自适应,进而提出了一种修正的模型,并结合卡尔曼滤波递推算法,提出了一种改进的自适应滤波算法。
In designing the deep bed , the empirical formula l / de = 800 is used as the basis . however , it has been proved that the formula cannot precisely describe the functional relationship and the correlation degree between the nitration behavior of the deep bed filtration process , the depth of the deep bed and the diameter of the sand granule , and it is restricted greatly in the practical application of finding a suitable depth of the deep bed 目前,滤池的设计通常采用经验公式i d _ e = 800作为设计滤池厚度的依据,但实践证明此经验公式还不能准确地反应滤池过滤特性与滤池深度l 、滤料粒径d的相关关系及相关程度,在实际应用中受到很大限制。